Multiverse in an inverted island

@article{Langhoff2021MultiverseIA,
  title={Multiverse in an inverted island},
  author={Kevin Langhoff and Chitraang Murdia and Yasunori Nomura},
  journal={Physical Review D},
  year={2021}
}
Kevin Langhoff, Chitraang Murdia, and Yasunori Nomura 2, 3 Berkeley Center for Theoretical Physics, Department of Physics, University of California, Berkeley, CA 94720, USA Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, Kashiwa 277-8583, Japan 

Figures from this paper

Islands in multiverse models
Abstract We consider multiverse models in two-dimensional linear dilaton-gravity theories as toy models of false vacuum eternal inflation. Coupling conformal matter we calculate the Von NeumannExpand
Free fermion entanglement with a semitransparent interface: the effect of graybody factors on entanglement islands
We study the entanglement entropy of free fermions in 2d in the presence of a partially transmitting interface that splits Minkowski space into two half-spaces. We focus on the case of a singleExpand
Island for Gravitationally Prepared State and Pseudo Entanglement Wedge
We consider spacetime initiated by a finite-sized initial boundary as a generalization of the Hartle-Hawking no-boundary state. We study entanglement entropy of matter state prepared by suchExpand
Entanglement between two evaporating black holes
We study a thermo-field double type entangle state on two disjoint gravitating universes, say A and B, with an eternal black hole on each. As was shown previously, its entanglement entropy of theExpand
A comment on a fine-grained description of evaporating black holes with baby universes
We study a partially fine-grained description of an evaporating black hole by introducing an open baby universe with a boundary. Since the Page’s calculation of the entropy of Hawking radiationExpand
Entanglement of Initial State and Pseudo Entanglement Wedge
We consider spacetime initiated by a finite-sized boundary on which a pure initial matter state is set as a natural generalization of the Hartle-Hawking noboundary state. We study entanglementExpand
Cosmologies, singularities and quantum extremal surfaces
Following arXiv:2012.07351 [hep-th], we study quantum extremal surfaces in various families of cosmologies with Big-Crunch singularities, by extremizing the generalized entropy in 2-dimensionalExpand

References

SHOWING 1-10 OF 97 REFERENCES
When Worlds Collide
We analyze the cosmological signatures visible to an observer in a Coleman-de Luccia bubble when another such bubble collides with it. We use a gluing procedure to generalize the results ofExpand
Colliding with a crunching bubble
In the context of eternal inflation we discuss the fate of Lambda = 0 bubbles when they collide with Lambda< 0 crunching bubbles. When the Lambda = 0 bubble is supersymmetric, it is not completelyExpand
Hawking-Moss bounces and vacuum decay rates.
  • E. Weinberg
  • Physics, Medicine
  • Physical review letters
  • 2007
TLDR
It is shown that such HM bounces do not give reliable rate calculations, but are instead related to the probability of finding a quasistable configuration at a local potential maximum, using a nongravitational example with analogous properties. Expand
Reanalyzing an evaporating black hole
Author(s): Nomura, Y | Abstract: © 2019 authors. Published by the American Physical Society. A coherent picture of the quantum mechanics of a collapse-formed, evaporating black hole is presented. InExpand
The Page curve of Hawking radiation from semiclassical geometry
We consider a gravity theory coupled to matter, where the matter has a higher-dimensional holographic dual. In such a theory, finding quantum extremal surfaces becomes equivalent to finding theExpand
Physical theories, eternal inflation, and the quantum universe
A bstractInfinities in eternal inflation have long been plaguing cosmology, making any predictions highly sensitive to how they are regulated. The problem exists already at the level ofExpand
Bulk reconstruction and the Hartle-Hawking wavefunction
In this work, a relation is found between state dependence of bulk observables in the gauge/gravity correspondence and nonperturbative diffeomorphism invariance. Certain bulk constraints, such as theExpand
A quantum measure of the multiverse
It has been recently suggested that probabilities of different events in the multiverse are given by the frequencies at which these events are encountered along the worldline of a geodesic observerExpand
Holographic framework for eternal inflation
In this paper we provide some circumstantial evidence for a holographic duality between bubble nucleation in an eternally inflating universe and a Euclidean conformal field theory (CFT). TheExpand
Inflationary Cosmology after Planck 2013
I give a general review of inflationary cosmology and of its present status, in view of the 2013 data release by the Planck satellite. A specific emphasis is given to the new broad class of theories,Expand
...
1
2
3
4
5
...